The time delay interferometry (TDI) is an algorithm proposed to suppress the\nlaser frequency noise in space-borne gravitational wave detectors. As a\npost-processing technique, it is implemented by constructing a virtual equal\narm interferometer through an appropriate combination of the time-shifted data\nstreams. Such an approach is tailored to the intrinsic feature of the\nspace-based gravitational wave detection, namely, the distances between\nspacecraft are governed by the orbit dynamics and thus can not be …